<template>
  <div class="app-container">
    课程列表
<!--查询表单-->
    <el-form :inline="true" class="demo-form-inline">
      <el-form-item>
        <el-input v-model="courseQuery.title" placeholder="课程名"/>
      </el-form-item>

      <el-form-item>
        <el-input v-model="courseQuery.price" placeholder="课程价格"/>
      </el-form-item>

      <el-form-item>
        <el-input v-model="courseQuery.lessonNum" placeholder="课时数目"/>
      </el-form-item>

        <el-form-item>
        <el-select v-model="courseQuery.status" clearable placeholder="课程状态">
          <el-option value="Draft" label="未发布"/>
          <el-option value="Normal" label="已发布"/>
        </el-select>
      </el-form-item>

      <el-button type="primary" icon="el-icon-search" @click="getList()">查询</el-button>
      <el-button type="default" @click="resetData()">清空</el-button>
    </el-form>


  <!-- 表格 -->
    <el-table
      :data="list"     
      element-loading-text="数据加载中"
      border
      fit
      highlight-current-row>

      <el-table-column
        label="序号"
        width="70"
        align="center">
        <template slot-scope="scope">
          {{ (page - 1) * limit + scope.$index + 1 }}
        </template>
      </el-table-column>

      <el-table-column prop="title" label="课程名称" width="160" />


      <el-table-column label="课程状态" width="80">
        <template slot-scope="scope">
          {{ scope.row.level==="Draft"?'未发布':'已发布' }}
        </template>
      </el-table-column>    


      <el-table-column prop="lessonNum" label="课时数" width="60" />

      <el-table-column prop="price" label="价格" width="80"/>

      <el-table-column prop="buyCount" label="销售数目" width="60" />


      <el-table-column prop="gmtModified" label="修改时间" width="160"/>

      <el-table-column label="操作" width="320" align="center">
        <template slot-scope="scope">
          
          <router-link :to="'/course/info/'+scope.row.id">
            <el-button type="primary" size="mini" icon="el-icon-edit">编辑课程</el-button>
          </router-link>

        <router-link :to="'/course/chapter/'+scope.row.id">
            <el-button type="primary" size="mini" icon="el-icon-edit">编辑大纲</el-button>
          </router-link>

          <el-button type="danger" size="mini" icon="el-icon-delete" @click="removeDataById(scope.row.id)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页 -->
    <el-pagination
      :current-page="page"
      :page-size="limit"
      :total="total"
      style="padding: 30px 0; text-align: center;"
      layout="total, prev, pager, next, jumper"
      @current-change="getList"
    />

  </div>
</template>
<script>
import course from '@/api/edu/course'
export default {
    // data:{
    // },
    data() {
        return{
            list:null,
            listp:null,
            page:1,
            limit:5,
            total:0,
            courseQuery:{}
        }
    },
    created() {
        this.getList()
    },
    methods:{
        getList(page = 1) {
            course.getPageCourse(this.page = page,this.limit,this.courseQuery)
            .then(response =>{
                this.list = response.data.records
                this.total = response.data.total
            })
            .catch(error => {
                console.log(error)
            })
        },
        resetData() {
          this.courseQuery={}
          this.getList()
        },
        removeDataById(CourseId){
           this.$confirm('此操作将永久删除该记录, 是否继续?', '提示', {
              confirmButtonText: '确定',
              cancelButtonText: '取消',
              type: 'warning'
          }).then(() => {
              return course.deleteCourse(CourseId)
          }).then(() => {
              this.getList()
              this.$message({
                  type: 'success',
                  message: '删除成功!'
              })
          })
        }

    }
}
</script>